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10.2 Maintenance of the pressure vessel (Fig. 1)
m Attention!
To ensure a long service life for the pressure ves-
sel (8), drain off the condensate after each use by
opening the drain screw (10).
Release the boiler pressure beforehand (see 10.7.1).
The drain screw is opened by turning it counterclock-
wise (when looking at the screw on the bottom of the
compressor) so that the condensate can be complete-
ly drained out of the pressure vessel. Then close the
drain screw again (turn clockwise). Check the pressure
vessel for rust and damage each time before use.
The compressor shall not be operated if the pressure
vessel is damaged or rusty. If you discover damage,
please contact the customer service workshop.
m Attention!
The condensate from the pressure vessel contains oil
residue. Dispose of the condensate in an environmen-
tally friendly manner at a suitable collection point.
10.3 Safety valve (Fig. 1, 3)
The safety valve (17) is set to the maximum permissible
pressure of the pressure vessel. It is not permitted to
adjust the safety valve or to remove the connection lock
(17.2) between the drain nut (17.1) and its cap (17.3).
Actuate the safety valve every 30 operating hours but
at least 3 times a year to ensure that it works when
required. Turn the perforated drain nut (17.1) anti-clock-
wise to open it, then pull the valve stem outwards by
hand via the perforated drain nut (17.1) to open the
safety valve outlet. Now, the valve audibly releases air.
Then turn the drain nut clockwise again to tighten.
10.4 Check the oil level at regular intervals (Fig. 11)
Place the compressor on a level and straight surface.
The oil level must be positioned between the MAX and
MIN of the oil sight glass (12).
Oil change: Recommended oil: SAE 15W 40 or equiv-
alent.
The first oil filling must be changed after 10 operating
hours; afterwards, perform an oil change every 50 op-
erating hours.
10.5 Oil change (Fig. 1, 10, 11)
Switch the motor off and unplug the mains plug from
the power outlet. Remove the oil plug (15). After re-
leasing any air pressure, you can unscrew the oil drain
screw (12) on the compressor pump (13).
To prevent the oil from running out in an uncontrolled
manner, hold a small metal chute under the opening
and collect the oil in a vessel. If the oil does not drain
out completely, we recommend tilting the compressor
slightly. Once the oil has fully drained out, replace the
oil drain screw (12).
Dispose of the old oil at a drop-off point for old oil.
To fill in the correct quantity of oil, make sure that the
compressor stands on an even surface. Fill the new
oil into the oil filler hole (18) until the oil level reaches
the maximum fill quantity. This is indicated by a red dot
on the oil sight glass (12) (Fig. 11). Do not exceed the
maximum filling quantity.
Overfilling the equipment may result in damage. Rein-
sert the oil plug (15) into the oil filler hole (18).
10.6 Cleaning the intake filter (Fig. 3, 12, 13)
The intake filter prevents dust and dirt being sucked
in. It is necessary to clean this filter at least every 300
operating hours. A blocked intake filter significantly re-
duces the compressor power.
Remove the intake filter (2x) by opening the screw (E).
Then pull off the filter cover (D). You can now remove
the air filter (F).
Carefully knock out the air filter, filter cover and filter
housing.
These components must then be blown out with com-
pressed air (approx. 3 bar) and reassembled in reverse
order.
10.7 Storage
m Attention!
Pull out the mains plug and ventilate the equip-
ment and all connected pneumatic tools. Store the
compressor in such a way that it cannot be used
by unauthorised persons.
m Attention!
Store the compressor only in a dry location which
is not accessible to unauthorised persons. Always
store upright, never tilted! Oil may leak out!
10.7.1 Releasing overpressure
Release overpressure in the compressor by switching
off the compressor and using up the compressed air
still in the pressure vessel, e.g. with a compressed air
tool running at idle or with an air blow gun.
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